Response of Noug [guizotia abyssinica (L.f.) Cass.] to weather factors.
2002
Adefris Teklewold and Girma Mamo(Researchers)
The response of noug to weather variables was investigated for Holetta and Ginchi in Ethiopia. The experimental crop data collated from long term field trails [1983-98] was used to screen weather variables, which impacted the noug seed yield. It was found that weather elements affecting noug seed yield differed in their importance for the two locations, Holetta, which is not a traditional noug growing area, showed higher grain yield. At this location, variations in prevailing minimum temperature in the second decade of July explained 58% of the crop yield variations. At Ginchi, the same weather parameter was important, but it was during the first dekad of September; which explained 56% of the variations in noug seed yield. Rainfall was the second important weather parameter in explaining crop yield variability at the two selected locations. The result of this preliminary study shows that at Ginchi, the development of early-maturing noug cultivars may be a step in sustaining the crop yields. At Holeta, the regression models can also be used to accurately predict crop yield, with lead time of at least two months of its harvesting time.
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This bibliographic record has been provided by Ethiopian Institute of Agricultural Research